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HENRY READ, 0F rnevlnnNe-ii, RHODE-ISLAND. Letters Patent No.' 71,918, dated December 10, 1867;

'IMPROVEMENT 1N LAMP-sunnites.

'ro' ALL WHOMJT MAY CONCERN:

Be it known that I, HENRY READ, of the city and county of Providence, in the State of Rhode Island, have invented a new and useful Improvement in a Eluid-Iiamp Burner; and I do hereby declare that tlie following is a full, c iear, and exact'descriptionl of tbe same,'reference being had to the annexed drawings, making a part of this specification, in which Figure 1 is a perspective view of my invention. Figures 2, 3, 4, 5, and 6 are detailed'parts. Figure 7 is m'yinvention with la chimney attached. In the accompanying drawings, A, 1, is a conical-shaped perforated` cylinder, having attached at its base or largest diameter, a framed or skeleton bottom, B. This skeleton bottom isprovided with screw-threads, and can be fitted to any lamp. C, iig. 5, is a flattened tube. Near the lower'end, on one of its attened sides, are two slots forreceiving ratchets, fig. 6, to be used in raisingand lowering the wick: 'A suitable distance from the opposite end of tube C, are two projections or stops.V D, fig. -1,`is another form of a cone with aperforated curved ange onitslower edge, the top-on opposite end of which is rounded, and having a slot on its rounded surface reaching from side to side, fig. 2. 0n the inside of this cone D, and across its centre, is fasteneda slide, asshown insection'on fig. 4.* This slide is tted toV tube C, the lower end of tube'Ghcing fastened through the centre of skeleton bottom B, as shown 4in g. 3, and passes up in the centre -of cylinder A, protruding a suitable distance above the upper end. The cone I) is'fastened to 0,' with the slide which rests on the two-projections or stops holdingit firm when. in use. Fig. ii is a piece of; wire having two ratchets fastened near its centre. On one `end of-wire is a small wheel or roller. These rntchets are'applied to the burner, by having the wire pass through two'holes on skeleton bottom B, as shown in iig. .3,'Which brings the ratchets in their proper places to move the wick. y

In using my improved burner, tbe skeleton bottom B, in combination `with the perforated conical-shaped cylinder A, forms a-perfect circulation of air in keeping the wick-tube cool, making it less liable to explosion, and supplying the quantity of air to support the flame, in preventing smoking, as used without a. chimney. The

conc D not being perforated, makes the circulation more perfect as the air is heated,'forms a current through the slot on its top, spreading and adding brightness to the dame. When a chimney is used, the cone D can be lower, and a rim with springs .made on skeleton bottom B, as shown in iig. 7.

I do not claim as my invention, a perforated burner, Vbut i What I do claim, and wish to secureby Letters Patent of the United States, is

The skeleton bottom B, in combination with the perforated cylinder C, and -cone D,when constructed und arranged substantially as described and for the purpose specied.

i HENRY READ.

Witnesses:

J. D. Tsmnsrolv, G. L. SPENcsn. 

